Sound reproducing apparatus and sound reproducing method

Abstract

A sound reproducing apparatus and a sound reproducing method. The sound reproducing apparatus includes an actual listening environment feature function database where an actual listening space feature function is stored for correcting the virtual source in response to a feature of an actual listening space provided at the time of listening; and an actual listening space feature correcting unit of reading out the actual listening space feature function stored in the actual listening environment feature function database, and correcting the virtual source based on the reading result. Accordingly, causes of each distortion may be removed to provide sounds having the best quality.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority under 35 U.S.C. § 119 from Korean Patent Application No. 2004-71771, filed on Sep. 8, 2004, in the Korean Intellectual Property Office, the entire content of which is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a sound reproducing apparatus and a sound reproducing method and, more particularly, to a sound reproducing apparatus employing a head related transfer function (HRTF) to generate a virtual source and a sound reproducing method using the same. [0004] 2. Description of the Related Art [0005] In the audio industry of the related art, output sounds were formed on a one-dimensional front or two-dimensional plane to generate substantial sounds close to vivid realism. In recent years, most sound reproducing apparatus have thus reproduced stereo sound signals from mono sound signals. However, the presence range whi...

AI Technical Summary

Benefits of technology

[0012] It is therefore one object of the present invention to provide a sound reproducing apparatus and a sound reproducing method capable of correcting distortions due to an actual listening space by correcting the feature of the actual listening space to have a virtual source generated from the HRTF.

[0013] It is another object of the present invention to provide a sound reproducing apparatus and a sound reproducing method capable of correcting distortions due to speakers by correcting the speaker feature to a virtual source generated from the HRTF.

[0014] It is another object of the present invention to provide a sound reproducing apparatus and a sound reproducing method capable of having listeners feel that they listen to sounds of virtual sources generated from the HRTF in an optimal listening space.

Problems solved by technology

However, the presence range which may be detected by sound signals generated when the stereo sound signals are reproduced was limited depending on a position of a speaker.

As such, vivid sounds close to presence may be obtained when the number of channels increases, however, it requires the number of speakers to be additionally increased by the increased number of channels, which causes cost and installation space to be increased.

However, when such a conventional sound reproducing apparatus is employed, a stereophonic effect which has been reflected at the time of recording is removed, so that listeners hear the sound which is not an initially optimized sound but a distorted one.

As a result, sounds required by the listeners were not properly provided.

However, the RTF used for correcting the sound requires a large number of data to be processed as compared to the HRTF.

In addition, existing reproduced sounds, which were intended to have features of the optimal listening space and the sound reproducing apparatus at the time of recording, become actually distorted depending on the listening space and speakers used by listeners.

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